Exception raised by tbwiki software

Traceback (most recent call last):
  File "/usr/lib/cgi-bin/fuego.cgi", line 55, in 
    main(req)
  File "/home/ubuntu/work/tbwiki/cgi-bin/tbwiki_engine.py", line 3184, in main
    data = call_processor(action_processor, action_function, req, content)
  File "/home/ubuntu/work/tbwiki/cgi-bin/tbwiki_engine.py", line 1893, in call_processor
    return processor_func(req)
  File "/home/ubuntu/work/tbwiki-data/fuego/plugins/ProcessorTable.py", line 28, in query_form
    message = table.query_form(req)
  File "/home/ubuntu/work/tbwiki/cgi-bin/table.py", line 1820, in query_form
    tb = setup_conf_and_db(req)
  File "/home/ubuntu/work/tbwiki/cgi-bin/table.py", line 1690, in setup_conf_and_db
    req.page_name, conf)
  File "/home/ubuntu/work/tbwiki/cgi-bin/table.py", line 2690, in get_table_data
    tb.handler.read()
  File "/home/ubuntu/work/tbwiki/cgi-bin/table.py", line 625, in read
    self.data_dir)
  File "/home/ubuntu/work/tbwiki/cgi-bin/table.py", line 1927, in read_page_or_block
    data = req.get_page_item(spec)
  File "/home/ubuntu/work/tbwiki/cgi-bin/tbwiki_engine.py", line 352, in get_page_item
    first, content = self.get_full_page_item(item_ref)
ValueError: need more than 0 values to unpack